user- Zemanta API is a simple API that delivers relevant tags, links and pictures from your unstructured data/content.
- Calais is a web service that uses natural language processing (NLP) technology to semantically tag text that is input to the service. The tags are delivere...Calais is a web service that uses natural language processing (NLP) technology to semantically tag text that is input to the service. The tags are delivered to the user who can then incorporate them into other applications - for search, news aggregation, blogs, catalogs, you name it.
